Donor Stem Cell Transplant in Treating Older or Frail Patients With Hematologic Cancer

DISEASE CHARACTERISTICS: * Diagnosis of a high-risk indolent hematologic malignancy meeting the following criteria: * Chronic lymphocytic leukemia (CLL) meeting 1 of the following criteria: * In second or subsequent remission * Failed to achieve a complete remission (CR) after chemotherapy * Non-Hodgkin's lymphoma (NHL) meeting 1 of the following criteria: * Low-grade NHL meeting 1 of the following criteria: * Standard-risk disease in second or subsequent remission * Standard-risk disease and failed to achieve a CR after chemotherapy * In first or subsequent remission with adverse International Prognostic Index (IPI) prognostic features, as defined by the presence of ≥ 3 of the following: * Age \> 60 years * Tumor stage III or IV * Extranodal disease at \> 1 site * ECOG performance status ≥ 2 * Serum lactic dehydrogenase (LDH) \> upper limit of normal (ULN) * Intermediate- or high-grade NHL meeting 1 of the following criteria: * In second or subsequent remission * Failed to achieve a CR after initial chemotherapy * Waldenstrom's macroglobulinemia meeting 1 of the following criteria: * In second or subsequent remission * Failed to achieve a CR after initial chemotherapy * Multiple myeloma meeting 1 of the following criteria: * In first or subsequent remission * Failed to achieve a CR after initial chemotherapy * Myeloproliferative disorders, including any of…